How do you solve X-2y=16 ?

Question

This is linear equations and im not quite sure how to do them

Answer 1

x - 2y = 16

You can't 'solve' this. It's just an equation. Perhaps you want to put it into the standard form of

y = mx + c

where m = slope   and   c = y-intercept     ?

 

If that's what you want, then this is how to do it.

 

x - 2y = 16

Subtract x from both sides of the equation:

x - x - 2y = 16 - x

- 2y = - x + 16

Now you can divide both sides of the equation by - 2:

(- 2y)/(-2) = (- x)/(-2) + 16/(-2)

y = x/2 - 8 = (1/2)x - 8

 

So the slope is 1/2 and the y-intercept is -8 .